Tree stand



FIG. 1 is a top perspective view of a tree stand showing my new design, it being understood that the phantom lines (i.e., the eyelet screw and mating threaded hole and nut) are for illustrative purposes only and form no part of the claimed design.

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a side elevation view thereof; the remaining sides views being identical views thereof; and,

FIG. 5 is a corner elevation view thereof; the remaining corners views being identical views thereof. 

I claim the ornamental design for a tree stand, as shown and described. 